【50 Amp RV Surge Protector】 Absorbs high-voltage spikes up to 5000 Joules and protects the RV electrical equipment from dangerous high/low voltage, electrical disturbances, and sudden power surges due to thunderstorms. The surge protector shell is made of premium fireproof flame-retardant material to reduce the risk of short circuits or fires 【Circuit Analyzer】The Surge Protector for RV allows you to test the quality of your power before connecting your RV, by verifying if the power source is correctly wired and by helping detect most wiring faults. The Circuit Analyzer Diagnostic Chart provides fault indication for the following wiring faults: Correct Wiring, Open Ground, Open Neutral, L1-Open, L2-Open, L1-Neutral Reversed, L2-Neutral Reversed, L1-Ground Reversed, L2-Ground Reversed, Open Circuit/No Power 【Safety Protection】With a huge operating temperature range, from -40℃ to 105℃, the protective film is wrapped in a thermal protection case for added safety. Especially designed for Outdoor Use the RV 50 Amp Surge Protector is Weather Resistant and Thermally Protected 【Easy to Use】The RV surge protector's plugs are designed with ergonomic power grip handles to safely and easily plug and unplug it, featuring a right-angle male connector to provide a reliable low-damage, and low-bend interface with your power source. Plug and play, no installation required 【Purchase With Confidence】EyGde rv power surge protector 50 amp rv extension cord is fireproof, High-temperature Resistant, more durable, and safe. You could purchase with confidence, with our 30-day return and 36-month replacement All-in-1 RV Surge Protector 50 Amp - The EyGde upgraded 5000 Joules smart rv surge protector 50amp is a must have for rv campers. It can identify the faulty power very quickly. Protects your RV electrical equipment power system from dangerous high or low voltage, even sudden power surges caused by thunderstorms or lightning strikes. Great camper accessories gifts for RV, travel trailers, motorhome. Gives your peace of mind